Electrical Machines In DC machine torque is proportional to which of the following? armature current(Ia) both A and B None of these flux(φ) armature current(Ia) both A and B None of these flux(φ) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In double cage induction motor, the inner cage offers high resistance and high reactance. low resistance and low reactance. low resistance and high reactance. high resistance and low reactance. high resistance and high reactance. low resistance and low reactance. low resistance and high reactance. high resistance and low reactance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole lap wound dc generator has 4 brushes, if one of the brush is damaged, what will be the change in V, I and P ratings V, I and P V, I/2 and P/2 V/2, I/2 and P/4 V/2, I and P/2 V, I and P V, I/2 and P/2 V/2, I/2 and P/4 V/2, I and P/2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stray losses in transformer occurs in transformer insulating oil. winding conductors and steel structures of transformer. paper insulation in transformers. steel core. transformer insulating oil. winding conductors and steel structures of transformer. paper insulation in transformers. steel core. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A part an alternator winding consist of eight coils in series, each having an emf of 20 V rms induced in it. Coils are placed in successive slots and between each slot and the next, there is an electrical phase displacement of 30°. Find the emf of eight coils in series 86.91 V. 66.91 V. 56.91 V. 76.91 V. 86.91 V. 66.91 V. 56.91 V. 76.91 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a seperately excited DC Motor if field current is increased, it will Reduce armature heating. Increase acceleration duration. Increase speed Reduce starting torque. Reduce armature heating. Increase acceleration duration. Increase speed Reduce starting torque. ANSWER DOWNLOAD EXAMIANS APP
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